نتایج جستجو برای: refrigerated freight handling

تعداد نتایج: 78239  

Journal: :Computers & Industrial Engineering 2012
Ming Yin Kap Hwan Kim

Because transportation services provided by container lines to forwarders cannot be stored, they can be considered to be newsvendor-type products. This paper discusses a method used to optimize container lines’ freight tariffs in order to maximize their expected profit by considering changes in order quantities made by forwarders responding to the price schemes suggested by the container lines....

2001
David J. Forkenbrock

In this article we estimate external costs for four representative types of freight trains. For each type of freight train, we estimate three general types of external costs and compare them with the private costs experienced by railroad companies. The general types of external costs include: accidents (fatalities, injuries, and property damage); emissions (air pollution and greenhouse gases); ...

2000
Nico Lassing PerOlof Bengtsson Hans van Vliet Jan Bosch

Modifiability is an important quality for software systems, because a large part of the costs associated with these systems is spent on modifications. The effort, and therefore cost, that is required for these modifications is largely determined by a system’s software architecture. Analysis of software architectures is therefore an important technique to achieve modifiability and reduce mainten...

2014
Jung-Hwi David Lee Catherine L Ross

16 Freight movement complexity and a lack of truck trip data limits freight modelling’s practicality 17 and application. Most publicly available truck movement data is reported at higher geographical levels 18 than detailed analysis and modelling require. The current Freight Analysis Framework (FAF) provides 19 freight data based on the Commodity Flow Survey (CFS) conducted every five years wit...

Journal: :Safety Science 2023

Heavy trucks disproportionately contribute to road fatalities and injuries worldwide. Safety efforts reduce these undesired outcomes have mostly focused on regulating overt driver behaviors such as speeding fatigue, ignoring underlying systemic issues the financial performance of company. Nevertheless, there is evidence that pressures may lead organizations safety investments adopt payment poli...

2015
Serpil Erol

Hubs are special centers that used for switching, transferring and handling freight or passengers in transportation systems. The hub location problem deals with locating hub facilities and allocating demand nodes to hubs in order to route the traffic between origin–destination pairs. Aiming at minimizing the total costs, maximizing utilization of transporters, maximizing the service level, etc....

2003
WARREN B. POWELL HUSEYIN TOPALOGLU

Freight transportation is characterized by highly dynamic information processes: customers call in orders over time to move freight; the movement of freight over long distances is subject to random delays; equipment failures require last minute changes; and decisions are not always executed in the field according to plan. The highdimensionality of the decisions involved has made transportation ...

2002
David Washington Janice R. Daniel

This paper presents a dynamic intermodal freight network scheme using a Discrete Element Method (DEM) approach for performing the microscopic simulation. The model is applied to a roadway network for freight movements from a port terminal. This approach was used to develop efficient control strategies for optimizing freight flow. The simulation model has various applications with the primary fo...

2013
Sara Gestrelius Florian Dahms Markus Bohlin

Efficient and correct freight train marshalling is vital for high quality carload freight transportations. During marshalling, it is desirable that cars are sorted according to their individual drop-off locations in the outbound freight trains. Furthermore, practical limitations such as non-uniform and limited track lengths and the arrival and departure times of trains need to be considered. Th...

Journal: :CEJOR 2017
Congcong Yang Alfred Taudes Guozhi Dong

Measuring the efficiency of Freight Villages (FVs) has important implications for logistics companies and other related companies as well as governments. In this paper we apply Data Envelopment Analysis (DEA) to measure the efficiency of European FVs in a purely data-driven way, incorporating the nature of FVs as complex operations that use multiple inputs and produce several outputs. We employ...

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